Noncontrast CT brain STAT: In the right parieto-occipital deep white matter a circumscribed, markedly hypodense lesion is noted with significant local mass effect and secondary vasogenic edema. Note hypodensity extending into the corpus callosum.
Postcontrast: Irregular, predominantly peripheral hyperenhancement of the mass. Features also considering the involvement of the splenium of the corpus callosum are in line with a high grade glial spectrum tumor.